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361f79c97f
sched_yield is used but the include reference on Darwin is missing. This patch conditionally guards on Darwin/OSX to import sched.h first. Reviewed-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com> Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
157 lines
4.3 KiB
C++
157 lines
4.3 KiB
C++
/****************************************************************************
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* Copyright (C) 2015 Intel Corporation. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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***************************************************************************/
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#include "pipe/p_screen.h"
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#include "util/u_memory.h"
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#include "util/os_time.h"
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#include "swr_context.h"
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#include "swr_screen.h"
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#include "swr_fence.h"
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#ifdef __APPLE__
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#include <sched.h>
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#endif
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#if defined(PIPE_CC_MSVC) // portable thread yield
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#define sched_yield SwitchToThread
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#endif
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/*
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* Fence callback, called by back-end thread on completion of all rendering up
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* to SwrSync call.
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*/
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static void
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swr_fence_cb(uint64_t userData, uint64_t userData2, uint64_t userData3)
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{
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struct swr_fence *fence = (struct swr_fence *)userData;
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/* Complete all work attached to the fence */
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swr_fence_do_work(fence);
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/* Correct value is in SwrSync data, and not the fence write field. */
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fence->read = userData2;
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}
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/*
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* Submit an existing fence.
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*/
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void
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swr_fence_submit(struct swr_context *ctx, struct pipe_fence_handle *fh)
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{
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struct swr_fence *fence = swr_fence(fh);
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fence->write++;
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fence->pending = TRUE;
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ctx->api.pfnSwrSync(ctx->swrContext, swr_fence_cb, (uint64_t)fence, fence->write, 0);
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}
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/*
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* Create a new fence object.
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*/
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struct pipe_fence_handle *
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swr_fence_create()
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{
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static int fence_id = 0;
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struct swr_fence *fence = CALLOC_STRUCT(swr_fence);
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if (!fence)
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return NULL;
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pipe_reference_init(&fence->reference, 1);
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fence->id = fence_id++;
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fence->work.tail = &fence->work.head;
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return (struct pipe_fence_handle *)fence;
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}
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/** Destroy a fence. Called when refcount hits zero. */
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static void
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swr_fence_destroy(struct swr_fence *fence)
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{
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/* Complete any work left if fence was not submitted */
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swr_fence_do_work(fence);
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FREE(fence);
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}
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/**
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* Set ptr = fence, with reference counting
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*/
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void
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swr_fence_reference(struct pipe_screen *screen,
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struct pipe_fence_handle **ptr,
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struct pipe_fence_handle *f)
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{
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struct swr_fence *fence = swr_fence(f);
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struct swr_fence *old;
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if (likely(ptr)) {
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old = swr_fence(*ptr);
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*ptr = f;
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} else {
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old = NULL;
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}
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if (pipe_reference(&old->reference, &fence->reference)) {
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swr_fence_finish(screen, NULL, (struct pipe_fence_handle *) old, 0);
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swr_fence_destroy(old);
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}
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}
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/*
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* Wait for the fence to finish.
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*/
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boolean
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swr_fence_finish(struct pipe_screen *screen,
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struct pipe_context *ctx,
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struct pipe_fence_handle *fence_handle,
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uint64_t timeout)
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{
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while (!swr_is_fence_done(fence_handle))
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sched_yield();
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swr_fence(fence_handle)->pending = FALSE;
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return TRUE;
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}
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uint64_t
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swr_get_timestamp(struct pipe_screen *screen)
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{
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return os_time_get_nano();
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}
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void
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swr_fence_init(struct pipe_screen *p_screen)
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{
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p_screen->fence_reference = swr_fence_reference;
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p_screen->fence_finish = swr_fence_finish;
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p_screen->get_timestamp = swr_get_timestamp;
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/* Create persistant StoreTiles "flush" fence, used to signal completion
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* of flushing tile state back to resource texture, via StoreTiles. */
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struct swr_screen *screen = swr_screen(p_screen);
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screen->flush_fence = swr_fence_create();
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}
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